baber/WOPTO huggingface dataset:
Patent GB-272843-A (GB)
Title: Method and apparatus for absorbing non precious gases in manufacturing electric discharge tubes
IPC: H01J9/395
Filed: 1926-11-18
Abstract: 272,843. Schrack, E., and Ettenreich, R., (trading as Radiowerk E. Schrack). June 17, 1926, [Convention date]. Vacuum tubes. - In the manufacture of discharge tubes common gases are absorbed by an alloy of rare earth metals with a relatively large amount, for example, 25 per cent of a heavy metal such as iron. An alloy containing 50 per cent of cerium, 25 per cent of iron, 20 per cent of lanthanum, and 5 per cent of didymium, when heated, absorbs nitrogen and oxygen completely. When a final gas filling at a pressure of 7 mm. of mercury is required in lamps or rectifiers, no preliminary evacuation is necessary. The cathode of a rectifier may be of cup shape, and powdered rare earth metal alloy may be placed therein and heated by eddy currents induced in the cathode so as to form an electron-emitting surface. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also (a) alloys of rare earth metals with alkaline earth metals such as calcium and magnesium, and (b) an alloy containing 40 to 60 per cent of cerium, 5 per cent of iron, and the remainder of rare earth metals. This subject-matter does not appear in the Specification as accepted.
Patent GB-854552-A (GB)
Title: Trifluoromethyl substituted n-alkylated dibenzazepines and dihydrodibenzazepines, and process for the preparation thereof
Filed: 1958-09-11
Abstract: The invention comprises compounds of the general formula: <FORM:0854552/IV(b)/1> in which Y is CH2CH2 or CH : CH, R1 is hydrogen or trifluoromethyl Z is amino, monoalkylamino, dialkylamino, pyrrolidinyl, piperazinyl, N-alkylpiperazinyl, N-hydroxyalkylenepiperazinyl, N-alkanoyloxyalkylenepiperazinyl, N-benzoyloxyalkylenepiperazinyl, N-dialkylaminoalkylenepiperazinyl, N-hydroxyalkyleneoxyalkylenepiperazinyl, N-alkanoyloxyalkyleneoxyalkylenepiperazinyl, N-benzoyloxyalkyleneoxyalkylenepiperazinyl or N-phenylalkylpiperazinyl-each of the alkyl groups having 1 to 6 carbon atoms and each of the alkanoyl and alkylene groups having 2 to 6 carbon atoms, and A is a straight or branched alkylene chain of 2 to 4 carbon atoms, separating the nitrogen atoms to which it is attached by at least 2 carbon atoms; and acid addition salts thereof; and the preparation thereof by the processes of the examples which may be summarized as follows:-condensing compounds of formula: <FORM:0854552/IV(b)/2> with appropriate reactive aminoalkyl esters containing the AZ moiety; or stepwise building of the side chain by successive condensations as required; or, where AZ is g -aminopropyl, reducing the appropriate nitrile; or, where Y is CH2CH2, internal condensations of appropriate o-amino-dibenzyls having substituents in the other ortho position capable of ring closure with the nitrogen atom; or, where Y is CH : CH, dehydrogenation of the corresponding compounds where Y is CH2CH2; and, if desired, converting the products into their acid addition salts.  The products are central nervous system depressants.  4-Bromo-41-hydroxybutylether is prepared by treating 4,41-dihydroxybutylether with HBr. 10,11-Dihydro-5-[31-(N-formylpiperazinyl) -propyl]-3-trifluoromethyl-5H-dibenz-[b,f.]-azepine is prepared by treating 3-triflouromethyl-iminodibenzyl with 1-formyl-4-(3'chloropropyl)-piperazine.  5-(31-Hydroxypropyl) - 3 - trifluoromethyl - 5H - dibenz-[b,f]-azepine p-toluenesulphonate is prepared by treating the sodio derivative of 3-trifluoromethyl-5H-dibenz-[b,f]-azepine with g -bromopropyl tetrahydro-pyranyl ether followed by hydrolysis and acylation with p-toluenesulphonyl chloride.  N-Carbethoxy-N1-(a -chloro-b -methyl-propyl)-piperazine is prepared by treating N-carbethoxy-piperazine with 3-bromo-2-methyl-propyl chloride. 3,7-Bis-trifluoromethyl - 5 - (21-cyanoethyl) - 5H - dibenz-[b,f]-azepine is prepared by reacting the appropriate dibenzazepine with acrylonitrile.  Specification 854,553 is referred to.
Patent GB-1440842-A (GB)
Title: Immunological adjuvants and process for their preparation
IPC: C07K14/35
Filed: 1973-06-19
Abstract: 1440842 Immunological adjuvants AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 19 June 1973 [19 June 1972 16 Nov 1972] 29149/73 Addition to 1426042 Heading A5B A process for preparing a water-soluble agent, having activity as an immunological adjuvant, especially for vaccines, comprises cultivating a strain of mycobacteria or Nocardia cells; recovering the cells of the cultivated strain; treating the cells with solvents so as to cause delipidation thereof and subjecting the delipidated whole cells to the action of a murolytic enzyme, the solid fraction being subsequently removed and the aqueous fraction containing the agent recovered. The agents may be treated with a proteolytic enzyme such as trypsin to remove amino acid impurities.
Patent GB-942923-A (GB)
Title: Coding device
Inventor: DELANOY DONALD BRIAN
IPC: H04L25/40
Filed: 1959-08-26
Abstract: 942,923. Electric selective signalling systems. PYE Ltd. Aug. 26, 1960 [Aug. 26, 1959], No. 29217/59. Heading G4H. An arrangement for producing a coded series of electrical pulses comprises switches S1-S4 set in accordance with the code desired and means for supplying pulses sequentially to the switches comprising a counting chain of cold cathode gas discharge tubes V5-V8 arranged to fire successively. On closure of a start switch S5, a multivibrator V1, V2 produces output pulses fed after amplification at V3 to the counting chain, a tube V4 ensuring that the tube V5 of the chain is fired first as described in Specification 885,458. A binary serial pulse train is thus produced on an output line 2 and is fed via a gate G supplied with pulses from a terminal B of the multivibrator to the output terminal T. With the switches S1, S2, S4 closed and S3 open, the code 1101 is produced at T. The counting chain may employ transistors instead of discharge tubes. Specifications 942,921 and 942,922 also are referred to.
Patent GB-1480862-A (GB)
Title: Circuit breaker and panelboard system
IPC: H02B1/056
Filed: 1975-07-11
Abstract: 1480862 Switchboards; plug-in switches WESTINGHOUSE ELECTRIC CORP 11 July 1975 [12 July 1974] 29232/75 Heading H1N In a panelboard and circuit breaker system comprising a panelboard with a line bus bar 7 and a neutral bus bar 9, and in a casing a circuit breaker having a neutral terminal 53, a load terminal 33 and a line terminal 39, there is an aperture 51 at an edge between the bottom wall and an end wall 45 of the circuit breaker casing at which aperture is arranged the line terminal 39 so that a knife blade connector 15 on the line bus bar 7 passes through this aperture to detachably contact the line terminal in the form of a spring clip 39 which embraces the blade 15, the load terminal and the neutral terminal being supported by the housing adjacent an end wall opposite the end wall 45. The neutral terminal 53 can comprise a similar clip 55, 57, which embraces a knife blade connector 9 on the neutral bus bar, or alternatively may be in the form of an L-shaped conductor protruding from the circuit breaker casing and detachably connected to the neutral bus bar by a bolt, Fig. 3 not shown. The connections between the neutral terminal and neutral bus bar, and the line terminal and line bus bar, are the sole means of support of the circuit breaker on the panelboard.
Patent GB-759664-A (GB)
Title: Improvements in and relating to continuous rolling mills and cooling beds for metal sheets
IPC: B21B43/00
Filed: 1954-10-13
Abstract: 759,664. Rolling. SCHLOEMANN AKT.-GES. Oct. 13, 1954 [Oct. 13, 1953], No. 29472/54. Class 83 (4). [Also in Group XXX] In a rolling-mill in which a continuous . strip is cut up into plates by shears, a roll table following the delivery table 3, Fig. 1, is divided into three sections 4a, 4b, 4c, the middle section 4b of which can be driven at the same speed as the first section 4a for shingling the plates or can be driven at a higher speed of the third section 4c for unshingling. In operation, the plates cut from one length of strip and deposited on the first two sections 4a, 4b from a raised delivery table are fed at high speed until the leading plate reaches the end of the conveyer. The sections 4b, 4c are then slowed down to feed the plates forward for unshingling by feed rolls 5 while the next batch of plates fed by rolls 2 is being shingled on the section 4a. The separated plates are fed on to edge rollers 13, Fig. 4, carried by supports 11, 12 which can be rocked to one side on arms 10 (not shown) to deposit the plates on to the grid 7 of a cooling bed 8. Chains or ropes (not shown) running over pulleys 14 carry the plates to the cooling bed.
Patent GB-966529-A (GB)
Title: Screw rotor compressor
IPC: F04C18/16
Filed: 1960-08-26
Abstract: 966,529. Rotary compressors. SVENSKA ROTOR MASKINER A.B. Aug. 26, 1960 [Sept. 1, 1959], No. 29527/60. Heading F1F. In a meshing screw type pump the inlet 16 and outlet 18 are disposed on opposite sides and lead to the periphery of the rotors; the casing 24 is relieved at 26 round the periphery of the rotors to the lines 30 defining the compression spaces and the crests of the screw lands from close running clearances over the remaining area of the casing. Cooling liquid is introduced at 32 into the compressive space and a baffle 36 deflects liquid escaping between the rotors away from the inlet. Drainage troughs may be provided in the baffle 36 or as shown in Fig. 4 at 37 on the side of the portions 26, and lead to outlets 46. Further baffles 48 deflect leakage at the line 30 to outlets 50.
Patent GB-691903-A (GB)
Title: Improvements in and relating to electromagnetic devices
IPC: G11B5/187
Filed: 1948-11-15
Abstract: 691,903. Magnetic recording and reproducing apparatus. WRIGHT & WEAIRE, Ltd., and NIBLETT, E. H. Dec. 15, 1949 [Nov. 15, 1948], No. 29603/48. Class 40 (ii) .In a magnetic head for recording, reproducing and erasing signals on a magnetic medium, the core consists of pairs of L-shaped laminations 13a, 13b, one arm of each lamination co-operating with its counterpart to form a magnetic gap 13c, and the other arm being of alternate lengths to form an interleaved joint secured by a single screw 14. The core is flattened at the elbows and is held at the flattened parts between uprights 11, 12 which are drawn together against the core by screws 19 and a bridge piece 18, so that the tips of the core forming the magnetic gap 13c are pressed together on to a shim of non-magnetic material, the thickness of which determines the size of the magnetic gap. The assembly is mounted on a base 23, having a casing 24 of high permeability material forming a magnetic screen. A slot 24a is provided in the screen to guide the magnetic medium and permit it to press upon an arcuate brass bearing-plate 20 having a hole 20a to receive the core tips.
Patent GB-1046047-A (GB)
Title: Process for the manufacture of trans-2-chlorobutene-(2)
IPC: C07C17/08
Filed: 1965-07-13
Abstract: Trans-2-chlorobutene-(2) is produced by reacting, while vigorously mixing, butyne-(2) with concentrated aqueous hydrochloric acid, and then separating and distilling the organic phase in conventional manner.  The reaction is preferably carried out at 16 DEG  to 28 DEG C. for a period of 2-8 hours.
Patent GB-696082-A (GB)
Title: Improvements in or relating to electric discharge apparatus
IPC: H05B41/232
Filed: 1950-12-05
Abstract: 696,082. Supply systems for space discharge apparatus. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES - ETABLISSEMENTS C.PAZ & SILVA. Dec. 5, 1950 [Dec. 20, 1949], No. 29744/50. Class 38 (iv). At least one group of at least two parallel connected metal filament incandescent lamps 17, 18, operating at their rated load, stabilize an electric discharge apparatus 1 serially connected therewith across a supply and having filamentary electrodes heated by the secondary windings of a transformer 9. The lamps 17, 18 are preferably krypton and/or xenon filled, and the discharge lamp 1 may have a starting facilitating auxiliary electrode comprising, e.g., a mainly graphite conducting strip connected through a resistor to one main electrode. Stroboscopic effect may be reduced by providing two further lamps 19, 22, respectively stabilized by a serially connected inductor 20 and condenser 21, and an inductor 23. In modifications the circuit may be supplied from a network through a transformer, or from primary or secondary cells through a vibrating interrupter; and each filament heating secondary winding may have its own magnetic circuit and primary winding. Suitable component values are given in the Specification. Reference has been directed by the Comptroller to Specification 647,033.
Patent GB-1390756-A (GB)
Title: Gaskets
IPC: F16J15/10
Filed: 1972-03-16
Abstract: 1390756 Joint-making packing UNITED STATES PIPE & FOUNDRY CO 16 March 1972 [17 March 1971] 29745/74 Divided out of 1388894 Heading F2B The subject-matter of the Specification is substantially the same as that described in Specification 1,388,894 but the claims are concerned with the annular elastomeric gasket (6).
Patent GB-1241813-A (GB)
Title: Size and shape analyser
Inventor: FOWLER ALAN
IPC: G01N15/02
Filed: 1968-06-21
Abstract: 1,241,813. Counters; selective signalling. BPB INDUSTRIES Ltd. 10 June, 1969 [21 June, 1968], No. 29839/68. Headings G4D and G4H. The size and shape of an object, e.g. a powder particle in a photomicrograph, is determined in two phases: firstly an aperture 13, Fig. 1, is imaged upon the object, the photomicrograph, for example, being placed on a glass screen above the aperture, the size of the aperture is varied by a lever 15 until it is judged to have the same area as the object, the lever 15 also positioning a contact 20, Fig. 2, and a foot switch S2 is closed causing a pulse to be applied both to one of a plurality of counters C corresponding to the size of particle, and also to a total counter TC; secondly, the size having been determined, a switch S1 is moved from its right-hand position to its position actually shown in Fig. 2, the aperture control lever 15, Fig. 1, and a second lever 23, whose only function is to position a contact 26, Fig. 2, are moved together until the image of the aperture completely encloses the object, and then the aperture control lever 15 is moved by itself until the image falls entirely within the boundary of the object, and finally a second foot switch S3 is closed causing a pulse whose amplitude is determined by the conjoint settings of the contacts 20, 26 to be applied to a recorder 50, and because the fixed contacts with which the movable contacts 20, 21 co-operate correspond to a series of aperture sizes forming a geometric progression, the amplitude of the resulting pulse represents the ratio of the largest dimension of the object to its least dimension.
Patent GB-893241-A (GB)
Title: Apparatus for comparing a pair of signals
IPC: G01S13/44
Filed: 1951-12-20
Abstract: 893,241. Phase-sensitive circuits. SPERRY RAND CORPORATION. Dec. 20, 1951 [Dec. 20, 1950], No. 29926/51. Class 38 (4). [Also in Group XL (c)] In a phase-sense descriminator, two alternating voltages are applied to a diode bridge, the output of which is positive or negative according as the applied voltages are in-phase or antiphase. As shown, one input D is applied between the ends of the primary of transformer 60 and the centre top. The output voltages between the ends of the secondary and the centre top are in antiphase. The second input voltage S is applied simultaneously to the ends of the secondary. As the amplitude of the S signal is greater than that of the D signal, the diode 63 conducts during positive half-cycles of the S signal and the diode 64 conducts during negative half-cycles. The signal S charges the condensers. 65, 66 in the same senses through the diodes so that the potentials at points X, Y alter equally in opposite senses, leaving the output terminal at zero potential. However, the signal D charges 65, 66 in opposite senses so that the output terminal has a voltage relative to earth, the sign of which corresponds to the sense of D with respect to S.
Patent GB-1005255-A (GB)
Title: Air-cushion vehicles
IPC: B60V1/00
Filed: 1961-08-21
Abstract: 1,005,255. Vehicles supported by gaseous cushions. N. LAING. Aug. 21, 1961 [Aug. 20, 1960], No. 30082/61, Heading B7K. An air-cushion vehicle has a plurality of cross-flow blowers arranged at opposite peripheral edges to produce a straight flow of air between intakes and exits extending along a major part of the length of the vehicle. In Fig. 1, the blowers are on all edges of the vehicle and are split in sections, e.g. 3, 4, 5, 6, 9 and 11, driven from one or more points by motors 8, air being taken in via intakes 14-18 and discharged through outlets 19, 20a, 20b to produce and maintain a supporting cushion. The blowers, shown in two parallel rows may be replaced by a single or by three blowers. A rear blower 12 produces a propulsive air flow 21 throttled by a flap 25. A partition 23 divides the flow from the side blowers into two streams. A tangential flow blower, Figs. 3-5, not shown, at the longitudinal sides of the vehicle has part of its outflow directed rearwardly for propulsion; throttling of this rearward flow on one side enables the vehicle to be steered. A longitudinally central blower inclined to the surface over which the vehicle travels produces forward propulsion in Fig. 6, not shown. The vehicle can have retractible wheels to wholly or partially support the vehicle and can have a retractible rubber skirt, Figs. 8a, 8b, not shown. The blowers 118 can be carried on foldable outriggers 115, 116, Fig. 11b. Figs. 9 and 10, not shown, give other forms of rear and side blowers respectively. Specification 876,611 is referred to. Reference has been directed by the Comptroller to Specifications 845,211 and 935,825.
Patent GB-666465-A (GB)
Title: Improvements relating to electronic voltage stabilizers
IPC: G05F1/52
Filed: 1949-11-24
Abstract: 666,465. Automatic voltage control systems. FERRANTI, Ltd., and HEAPS, J. G. Feb. 20, 1951 [Nov. 24, 1949], No. 30103/49. Class 38 (iv). A D.C. electronic voltage stabilizer comprises a tetrode valve 1 in series with the load, a valve 11 connected to yield an output voltage inversely dependent on the load voltage for application to the control grid of the valve 1 and to a further amplifier valve 20, the output of the valve 20 being applied to the screen grid of the valve 1. The anode of valve 20 may be supplied directly from the source Fig. 2 (not shown), or from a separate supply as shown. In a further embodiment, Fig. 3 (not shown), the valve 1 is connected in parallel with the load, control voltage being applied to the control and screen grids.
Patent GB-141297-A (GB)
Title: Improvements in or relating to garments
IPC: A41B13/04
Filed: 1919-12-02
Abstract: 141,297. White, A. E., (Kleinert Rubber Co., I. B.). Dec. 2, 1919 Drawers.-A blank is shown in Fig. 1 for making, more particularly, baby pants, and preferably consists of waterproof material. The blank is preferably oval with the leg holes 2 or 5, arranged as shown with respect to the axes 3, 4. The outside of the blank forms the top of the garment and with the leg holes are shirred by means of an elastic strip.
Patent GB-773136-A (GB)
Title: Apparatus for adding values with the aid of address printing plates
IPC: B41L45/00
Filed: 1955-10-21
Abstract: 773,136. Statistical apparatus; counting apparatus. ADREMA-WERKE GES. Oct. 21, 1955 [Oct. 21, 1954], No. 30142/55. Class 106 (1). Values represented by embossed ribs 8 on carriers, e.g. address plates 3, are added as the plates travel along a guide track by a counting mechanism 4 having toothed wheels 6, Fig. 3, adapted to engage directly with the ribs on the plates and to be turned thereby. The ribs are arranged in rows, the number of ribs in each row corresponding to the digital value in each denomination. Rows of ribs representing values in different decimal orders are positioned on different spaced lines parallel to the direction of movement of the plate for co-operation with spaced toothed wheels of the counting mechanism. Rows in different decimal lines are staggered so as not to overlap. This allows the carry mechanism to work freely before counting on the next higher denomination begins. The values recorded may be altered by flattening the ribs or embossing further ribs. The addition of the values is shown on counter wheels 5.
Patent GB-520346-A (GB)
Title: Projectile
IPC: F42B14/04
Filed: 1938-10-18
Abstract: 520,346. Bullets. TIETIG, C. Oct. 18, 1938, No. 30185. [Class 9 (i)] A composite bullet comprises a jacketed or unjacketed forward part 11 of greater density than the cupped rear part 10, which is formed of a porous metal impregnated with lubricant. The forward part may be of lead or lead alloy, and the jacket 13 of copper or copper alloy. The base 10 may be made as described in Specification 518,267 from finely divided metal powders mixed with an easily reducible metallic oxide or oxides, e.g., powdered copper and copper oxide, the mixture being pressed to shape and then heated to reduce the oxide. A proportion of graphite may be included in the mixture. After cooling, the sintered bases are impregnated with lubricant. The parts are connected so as to rotate together when the bullet is fired from a rifled barrel by a spigot 12 on the head engaged in a socket 14 in the base; these parts being preferably formed with interengaging ribs or the like 17.
Patent GB-448084-A (GB)
Title: Improvements in carrier wave signalling systems
IPC: H03F3/66
Filed: 1935-11-01
Abstract: 448,084. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd., 63, Aldwych, London.-(Assignees of Caruthers, R. S.) Nov. 1, 1935, No. 30224. Convention date, Dec. 14, 1934. Addition to 427,605. [Class 40 (iv)] [See also Group XL] In the two-way carrier transmission system of the parent Specification in which combined modulator-demodulators are provided at two interconnected stations whereas a carrier source is provided at one station only, a twoway amplifier is also used at the station having the carrier source, this amplifier serving as a high frequency amplifier in one direction and a speech frequency amplifier in the other direction. In a modification, the valve acting as the amplifier serves also as an oscillator. In the system shown in Fig. 1, a separate carrier source 40 and amplifier 22 are provided at the left hand station. Speech from jack 31 passes over filter LPF to a bridge 25, is modulated at 33 and after amplification at 22 passes over HPF to the line. The carrier is also amplified at 22 and fed to the line so that the modulated carrier on arrival at the other station is demodulated at 331. Speech in the other direction modulates the carrier applied over the line to 331 and on arrival at the left hand station is demodulated at 33, and amplified at 22. The impedance across the line at point 15 between the filters LPF, HPF approximates to a resistance and is balanced by resistance 21 which may have capacity in series or parallel or be replaced by a network. If filters LPF, HPF do not have the same cut-off frequency, an unbalance may exist over the range between the cut-off frequencies in which case a rejector filter 23 is provided. Where a hybrid coil, Fig. 1A, is used instead of the bridge 25, a choke 26 is used to provide a path for direct current due to the modulator-demodulator. The combined oscillator and two-way speech and carrier frequency amplifier is shown in Fig. 3 which also comprises the bridge 25 and modulatordemodulator 33 of Fig. 1. The pentode 46 oscillates at the desired frequency by virtue of a feed-back path 52 containing series resistance and a tuned shunt circuit 53 to exclude speech and side bands. In order to avoid overload as a combined oscillator and amplifier, the amplitude of oscillation is limited by a further shunt 47 of non-linear characteristic such as a material formed from silicon carbide, or the arrangement of metal rectifiers 63, 64 and adjustable resistances 66 shown in Fig. 3A. The modulator-demodulator 33 may be designed to provide the limiting effect. A voice frequency channel may be operated over the line in known manner.